S-91263A532 8-36 x 1" ASTM F835 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 130,000 PSI ensures reliable performance under high-stress conditions, reducing the risk of fastener failure
• Zinc-plated alloy steel construction provides superior corrosion resistance, extending service life in demanding industrial environments
• Class 3A thread fit delivers precise, secure fastening with minimal play, ideal for applications requiring vibration resistance
• Fully threaded design offers maximum grip length and uniform load distribution across the entire fastener
• 82° countersink angle allows for flush mounting in standard countersunk holes, creating smooth surface finishes
• 3/32" hex drive compatibility enables quick installation and removal with standard tools, improving assembly efficiency
• Rockwell C39 hardness rating maintains thread integrity and prevents stripping during repeated installation cycles

Professional Applications & Engineering Value

These 8-36 UNF Class 3A flat head screws with fine thread spacing provide critical solutions for precision assembly applications where vibration resistance and reliable clamping force are paramount. The zinc-plated alloy steel construction withstands harsh environmental conditions while maintaining structural integrity, making these fasteners ideal for industrial machinery, electronic enclosures, and automotive components. The combination of 130,000 PSI tensile strength and fully threaded design ensures maximum load-bearing capacity and uniform stress distribution, preventing joint failure in high-vibration environments. The 82° countersink angle and flat head profile enable seamless integration into precision-machined surfaces, creating aerodynamically smooth finishes while maintaining the structural benefits of right-hand thread fastening systems.

Specification Summary & Compliance

Manufactured to exacting Class 3A thread fit tolerances with UNF fine thread specifications, these screws deliver precision threading performance. The product meets ASTM F835 manufacturing standards and demonstrates full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global industrial applications requiring strict material and safety standards.